Boiler controller



FIG. 1 is a front perspective view of a boiler controller.

FIG. 2 is a rear perspective view of the boiler controller.

FIG. 3 is a front view of the boiler controller.

FIG. 4 is a rear view of the boiler controller.

FIG. 5 is a left side view of the boiler controller.

FIG. 6 is a right side view of the boiler controller.

FIG. 7 is a top view of the boiler controller.

FIG. 8 is a bottom view of the boiler controller.

FIG. 9 is a front perspective view of a second embodiment of the boiler controller.

FIG. 10 is a rear perspective view of the second embodiment of the boiler controller.

FIG. 11 is a front view of the second embodiment of the boiler controller.

FIG. 12 is a rear view of the second embodiment of the boiler controller.

FIG. 13 is a left side view of the second embodiment of the boiler controller.

FIG. 14 is a right side view of the second embodiment of the boiler controller.

FIG. 15 is a top view of the second embodiment of the boiler controller.

FIG. 16 is a bottom view of the second embodiment of the boiler controller.

FIG. 17 is a front perspective view of a third embodiment of the boiler controller.

FIG. 18 is a rear perspective view of the third embodiment of the boiler controller.

FIG. 19 is a front view of the third embodiment of the boiler controller.

FIG. 20 is a rear view of the third embodiment of the boiler controller.

FIG. 21 is a left side view of the third embodiment of the boiler controller.

FIG. 22 is a right side view of the third embodiment of the boiler controller.

FIG. 23 is a top view of the third embodiment of the boiler controller.

FIG. 24 is a bottom view of the third embodiment of the boiler controller.

FIG. 25 is a front perspective view of a fourth embodiment of the boiler controller.

FIG. 26 is a rear perspective view of the fourth embodiment of the boiler controller.

FIG. 27 is a front view of the fourth embodiment of the boiler controller.

FIG. 28 is a rear view of the fourth embodiment of the boiler controller.

FIG. 29 is a left side view of the fourth embodiment of the boiler controller.

FIG. 30 is a right side view of the fourth embodiment of the boiler controller.

FIG. 31 is a top view of the fourth embodiment of the boiler controller; and,

FIG. 32 is a bottom view of the fourth embodiment of the boiler controller.

The broken lines in the figures show features of the boiler controller that form no part of the claimed design. 

CLAIM The ornamental design for a boiler controller, as shown and described. 